williamr@2: 
williamr@2: #ifndef BOOST_MPL_PROTECT_HPP_INCLUDED
williamr@2: #define BOOST_MPL_PROTECT_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Peter Dimov 2001
williamr@2: // Copyright Aleksey Gurtovoy 2002-2004
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/protect.hpp,v $
williamr@2: // $Date: 2004/09/07 21:37:24 $
williamr@2: // $Revision: 1.10 $
williamr@2: 
williamr@2: #include <boost/mpl/aux_/arity.hpp>
williamr@2: #include <boost/mpl/aux_/config/dtp.hpp>
williamr@2: #include <boost/mpl/aux_/nttp_decl.hpp>
williamr@2: #include <boost/mpl/aux_/na_spec.hpp>
williamr@2: 
williamr@2: namespace boost { namespace mpl {
williamr@2: 
williamr@2: template<
williamr@2:       typename BOOST_MPL_AUX_NA_PARAM(T)
williamr@2:     , int not_le_ = 0
williamr@2:     >
williamr@2: struct protect : T
williamr@2: {
williamr@2: #if BOOST_WORKAROUND(__EDG_VERSION__, == 238)
williamr@2:     typedef mpl::protect type;
williamr@2: #else
williamr@2:     typedef protect type;
williamr@2: #endif
williamr@2: };
williamr@2: 
williamr@2: #if defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
williamr@2: namespace aux { 
williamr@2: template< BOOST_MPL_AUX_NTTP_DECL(int, N), typename T >
williamr@2: struct arity< protect<T>, N > 
williamr@2:     : arity<T,N>
williamr@2: { 
williamr@2: };
williamr@2: } // namespace aux
williamr@2: #endif
williamr@2: 
williamr@2: BOOST_MPL_AUX_NA_SPEC_MAIN(1, protect)
williamr@2: #if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)
williamr@2: BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(1, 1, protect)
williamr@2: #endif
williamr@2: 
williamr@2: }}
williamr@2: 
williamr@2: #endif // BOOST_MPL_PROTECT_HPP_INCLUDED